Our 7 month old Boxer mix pup had turned very aggressive over the last 2 weeks and nothing in our lives has changed. We have a very small chihuahua who is 3 yrs old. SHe has snapped at him when he walks by her bit our chi on the face causing him to bleed. She snuck a bag of treats I tried to take away from her and she growled very loud and bit my hand with enough force to leave a bruise. We had been able to take bones and toys from her before with no problem. Not sure why the mood change and what to do. I have grabbed her by her neck and held her on her back until she calms down but then 20 mintues later she goes after the chihuahua again. SHe stalks him like prey trying to bite his little legs. Any Sugg!!
Boxers were originally bred to hunt, and although those traits are no longer desired, sometimes that can pop up. Your little chi, could very well be any small furry creature to hunt. Stalking them is exactly what they do.
has the dog been to any obedience class, or had any formal training? have you made your self the alpha in the house other then holding the dog on its back?
The dog sounds to me like a spoiled child who has been allowed to get away with things before. He/she also sounds like he is trying to see what exactly he can get away with. Pushing the limits so to speak. If you have not done any formal training with the dog, I suggest you get started right away.
until then i would suggest keeping the 2 dogs separate.
That is very odd behavior for a Boxer. I have multiple adult Boxers down to young Boxer puppies in my house every day along with 2 Yorkies under 5 pounds.
None of them, except for extremely young puppies would go for the Yorkies because I put the fear of God in to them right off the bat, but even adult dogs I have purchased know with out mistake.... No one touches the Yorkies. Simple rule. No playing, no rough-housing. They are all very careful of not stepping on the Yorkies.
If there is a treat issue, you may not be able to give them treats together.
Unless it is a brain tumor (unlikely at that age, but not unheard of I suppose), or that the puppies were out of parents with aggressive, unstable temperament, it is likely a training issue-- that you have allowed. Or your dog doesn't respect you, and the rules of your house.
The good news is at this age, you can still correct the Boxer's behavior.
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